<?php

class PostController extends Controller
{
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout='//layouts/column2';

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
			'postOnly + delete', // we only allow deletion via POST request
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
	   return array(
        array('allow',  // allow all users to perform 'list' and 'show' actions
            'actions'=>array('index', 'view', 'create'),
            'users'=>array('*'),
        ),
        array('allow', // allow authenticated users to perform any action
            'users'=>array('@'),
        ),
        array('deny',  // deny all users
            'users'=>array('*'),
        ),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
 
	private $_model;
	 
	public function loadModel()
	{
		if($this->_model===null)
		{
			if(isset($_GET['id']))
			{
				if(Yii::app()->user->isGuest)
					$condition='status='.post::STATUS_PUBLISHED
						.' OR status='.post::STATUS_ARCHIVED;
				else
					$condition='';
				$this->_model=post::model()->findByPk($_GET['id'], $condition);
			}
			if($this->_model===null)
				throw new CHttpException(404,'The requested page does not exist.');
		}
		return $this->_model;
	}
		public function actionCreate()
		{
			$model=new post;

			// Uncomment the following line if AJAX validation is needed
			// $this->performAjaxValidation($model);

			if(isset($_POST['post']))
			{
				$model->attributes=$_POST['post'];
				if($model->save())
					$this->redirect(array('view','id'=>$model->id));
			}

			$this->render('create',array(
				'model'=>$model,
			));
		}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['post']))
		{
			$model->attributes=$_POST['post'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->id));
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		$this->loadModel($id)->delete();

		// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
		if(!isset($_GET['ajax']))
			$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
		{
			$criteria=new CDbCriteria(array(
				'condition'=>'status='.post::STATUS_PUBLISHED,
				'order'=>'update_time DESC',
				  
				
			));
			if(isset($_GET['tag']))
				$criteria->addSearchCondition('tags',$_GET['tag']);
		 
			$dataProvider=new CActiveDataProvider('post', array(
				'pagination'=>array(
					'pageSize'=>5,
				),
				'criteria'=>$criteria,
			));
		 
			$this->render('index',array(
				'dataProvider'=>$dataProvider,
			));
		}

	/**
	 * Manages all models.
	 */
		public function actionAdmin()
		{
			$model=new post('search');
			if(isset($_GET['post']))
				$model->attributes=$_GET['post'];
			$this->render('admin',array(
				'model'=>$model,
			));
		}

	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='post-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
	
public function actionView()
{
    $post=$this->loadModel();
    $comment=$this->newcomment($post);
 
    $this->render('view',array(
        'model'=>$post,
        'comment'=>$comment,
    ));
}
 
 
protected function newComment($post)
{
    $comment=new comment;
    if(isset($_POST['Comment']))
    {
        $comment->attributes=$_POST['Comment'];
        if($post->addcomment($comment))
        {
            if($comment->status==comment::STATUS_PENDING)
                Yii::app()->user->setFlash('commentSubmitted','Thank you for your comment. Your comment will be posted once it is approved.');
            $this->refresh();
        }
    }
    return $comment;
}
}
	